in michigan on monday, the president warned going over the fiscal cliff will cost jobs and send the country in a downward spiral. >>> colorado is now the second state after washington in which marijuana is now legal. that became the law yesterday, when the governor put a voter-approved amendment into the state's constitution. the implementation of the law will be worked out by a special task force. in a statement, the u.s. attorney noted that pot remains illegal, though, under federal law. >>> well, family and friends are remembering that navy s.e.a.l. who gave his life to rescue an american doctor in afghanistan. abc's senior foreign affairs correspondent martha raddatz has more on the life of this fallen warrior. >> reporter: nicolas checque was just 28 years old. but for much of the last decade he had been a navy s.e.a.l. the last five years, part of the elite s.e.a.l. team six. in iraq, afghanistan, wherever he was needed, checque carried out dangerous missions. just like the one that took his life on sunday. it was just before 3:00 a.m. when checque and his team, along with afghan comm